Objective This study is to examine the effect of different breathing patterns (abdominal respiration,natural respiration)on skin temperature(TEMP),skin conductivity(SC) and heart rate variability (HRV) in college students.Methods We use single blind trial in the study,and randomly select thirty students,including fourteen male and sixteen female,aged 19.6±0.77 years,and then randomly divide them into two groups:the intervention group (abdominal respiration group,6 males and 9 females) and the control group(natural respiration group,8 males and 7 females).In the study three phases are included:baseline phase(five minutes),test phase(fifteen minutes),recovery phase(five minutes).Data of above indicators was collected at 3-5 min,14.5-19.5 min,and 23-25 min,respectively,during the study.Results (1) There are no significant difierences of all three indicators between the two groups in the baseline phase(P<0.05).(2)The SC of the test phase in the intervention group is lower than in the control group (P=0.05),while the TEMP and HRV of the two groups show no significant differences(P>0.05).(3)There are no significant differences of TEMP and the HRV in the recovery phase between the two groups(P>0.05),except the SC (P<0.05).Conclusion No significant difference is observed between the influences of abdominal and natural respiration on the emotion-related biological indicators.

BACKGROUND: It is always the key issue of rheumatoid arthritis(RA) to treat articular gall. A kind of medicine with favorable therapeutic effects and safety is urgently needed in the clinics. 99Tc-methylene diphosphonate 99(Tc-MDP) receives generalized attentions on its therapeutic effects and safety since its application into RA therapy.OBJECTIVE: To explore the characters of 99Tc-MDP in the amelioration of articular dysfunction in RA patients.DESIGN: A before-and-after controlled study by employing patients as subjects.SETTING: Department of rheumatism and immunology of an affiliated hospital of a university.PARTICIPANTS: Totally 67 patients with RA at active phase including 11males and 56 females aged between 29 and 71 years old with the course of disease between 9 and 78 months and admitted by the Department of Rheumatism of Huaxi Hospital Affiliated to Sichuan University were in accordance with the RA diagnostic criteria established by American Rheumatism Association(ARA) in 1987. Serious heart,liver or kidney dysfunction,active gastrointestinal pathological changes, hematology and endocrinology diseases,allergic complexion,and women during pregnancy or breast-feeding period were eliminated.METHODS: Clinical indicators including articular edema index, articular pain,grip,morning stiffness duration,rest pain,erythrocyte sedimentation rate (ESR) and C reactive protein(CRP) were compared before and after therapy in 67 cases received 99Tc-MDP treatment. Integrated evaluation was performed after the completion of therapy. Effective meant 30% of improvement in symptoms and physical signs,and reduction in ESR and CRP. Side effects were observed and recorded simultaneously. Data were statistically analyzed.RESULTS: After 99Tc-MDP treatment,RA condition significantly improved,as well as each clinical indicator including articular edema index,articular pain index,morning stiffness duration,rest pain,ESR and CRP(P<0.05) . The total clinical effective rate of this medicine was 81% and the incidence of side effects was small and mild.CONCLUSION: 99Tc-MDP can ameliorate the articular dysfunction of RApatients,which is a safe medicine with strong effect.

To evaluate the inhibitive effect of plant protein MAP30 (momordica anti-HIV protein of 30kDa), AZT (3′-azido-2′,3′-dideoxythymidine) , ACV (acyclovir) and IFN-?2a (interferon-?2a) against HIV-1 in vitro, MT4 was used as the target cell and the inhibitive effects of these drugs on HIV-1 P24 expression were investigated by ELISA. The inhibitory effect of these drugs on HIV-1-induced cytopathy was also evaluated. The 50% inhibition concentration (IC 50) of MAP30 was 0.9?mol/L. In comparison, the IC 50 for AZT , a commonly used anti-HIV drug, was 0.7?mol/L. The cytopathic effect induced by HIV-1 was also inhibited by MAP30 and AZT. ACV and IFN-?2a showed little effect on HIV-1. All these results strongly indicated that plant protein MAP30 could obviously inhibit HIV-1 replication in vitro.

Objective:To establish the medical equipment maintenance management system based on HRP, to break through and solve various problems that the traditional manual management mode couldn't resolve in the medical equipment maintenance and repair, and to ensure the normal development of clinical diagnosis and treatment.Methods: Using the network information technology, combining with the characteristics of the hospital industry, referring to the enterprise resource planning management system, to establish a new hospital medical equipment maintenance management system.Results: The system management module included a series functions, such as maintenance reports, maintenance applications, applications for repair, maintenance grades, maintenance items, fault types and maintenance methods. This module unified the technology and methods, contents and procedures of equipment maintenance, and the system also included maintenance plan, maintenance report and early warning function for the equipment using. Besides, the design of specially displayer would real-time display maintenance information.Conclusion: HRP system was used to replace the traditional manual management mode and it can break and resolve various problems of medical equipment repair and maintenance at the present hospital, such as record and save the maintenance information, provide high efficiency and high quality service for the clinical diagnosis and treatment, and data support for statistical analysis.

OBJECTIVE: To explore the resource and solution of the expired drugs in citizen family through investigating its constituents and expired time.METHODS: By a random sampling,the records of the reclaimed drugs of a total of 1 000 cases collected from 6 drugstores were analyzed statistically.RESULTS: The main expired drugs reclaimed from citizen family were cardiovascular and cerebral vessels drugs,drugs for respiratory disease,and reinforcing and regulating drugs,and most of which were overdue 50 months ago.CONCLUSIONS: The situation of expired drugs in citizen family is serious,thus measures such as reclaiming expired drugs and popularizing knowledge about taking drugs should be taken to tackle the problem of expired drugs.

Increasing evidences have shown that intestinal microbiota may contribute to the etiology of colorectal cancer(CRC). Studies have shown some microbial species which can increase the risk of CRC. Intestinal bacteria can promote carcinogenesis by affecting DNA integrity,regulating immune reaction,inducing inflammation,increasing cell proliferation and altering stem cell dynamics. Modulation of intestinal microbiota may become an approach to prevent or treat CRC. This article reviewed the effect and mechanism of intestinal bacteria flora on CRC.

Objective To investigate the residues of antibiotics such as quinolones in fishes from Guangzhou aquatic products market.Methods The residues of three kinds of quinolones(NFLX,CPFX and ENFX) in four kinds of fishes collected from five agriculture products markets in Guangzhou were determined by RP-HPLC.Results NFLX was detected in all samples,ranged from 2.19-192.8 ng/g with the maximum concentration of 192.8 ng/g,the detection rate of CPFX was 40% with the average concentration of 4.34 ng/g,ranged form 0-25.36 ng/g,the detection rate of ENFX was 45% with the average concentration of 6.83 ng/g.Three kinds of quinolones were found with high detection rate in Micropterus salmoides and Anguilla japonica,the average detection rates of NFLX,CPFX and ENFX in muscle tissues of Micropterus salmoides were 100%,40% and 100% respectively,that in Anguilla japonica were 100%,40% and 80% respectively.Low rate of ENFX was found in Monopterus albus and Ctenopharyngodon idellus muscle tissues,the average detection rates were 20% and 10%.Higher pharmaceuticals concentrations were detected in the liver than those in the muscle tissue.Conclusion The residues of quinolones in the muscle tissue of fish sold in Guangzhou is considered eligible based on the related standards.

Objective To demonstrate the influence of stress on attentional bias in athletes,in order to make guidance for athletes' attention training and control.Method Using dot-probe paradigm,we analyzed the attention behavior of 25 athletes either under stress or not when viewing different pictures of emotional face.The reaction time and the score of the attention bias were recorded and compared.Result The reaction time to negative face pictures under stress was significantly shorter than that to the positive and neutral ones.The value of the attention bias to negative pictures was significantly bigger than O.Conclusion Stress tends to induce attention bias of athletes to negative information.

Objective To construct and express a small complement receptor type 1 (CR1) deriv-ative which contained two functional domains. Methods Total RNA was isolated from the peripheral blood mononuclear cell. The functional fragment Ⅰ of CR1 was amplified using the RT-PCR. The functional frag-ment Ⅱ was amplified with the plasmid of pET-32a-CR1-SCR15-18 as template which had been already con-structed in our laboratory. Then the chimeric gene that contained the two fragments was constructed with spli-cing overlap extention PCR. The chimeric gene was then inserted into the plasmid of pET-32a (+) and transformed into E. coli Rosetta(DE3). The inserted gene was verified by enzyme digestion and DNA se-quencing. After induced by IPTG, the expressed protein was analyzed by SDS-PAGE and Western blot. Then the fusion protein was purified by Ni-NTA affinity column and renatured through dialysis. The comple-ment inhibition activity was determined by CH50 method. Results The chimeric gene was successfully cloned into pET-32a(+). The result of SDS-PAGE and Western blot confirmed the expressed protein and showed that the molecule mass(Mr) of the expressed protein was 63×103. The purity of the recombinant protein was up to 92% after Ni-NTA column affinity chromatography. The bioactivity assay showed the fusion protein had a concentration-dependent complement inhibition activity within the concentration range of 0-200 μg/ml. Conclusion The two functional domains contained small CR1 derivative was successfully construc-ted and expressed in E. coli Rosetta. The fusion protein had a relative high bioactivity, providing a basis for further function experiment in vivo.

Recent meta-analysis based on both clinical trials and epidemiological studies has revealed the relationship of dietary cholesterol,blood cholesterol level and cholesterol lowering drugs (statins) with colorectal cancer.This review summarises the advances in current evidences of linking cholesterol metabolism and risk of colorectal cancer and the underlying molecular mechanisms based on pharmacogenetics and molecular pathology.